NBC's 'Line of Fire' premieres September 21 at 10 p.m. ET, streams next day on Peacock

NBC's new family law-enforcement drama 'Line of Fire' premieres September 21 at 10 p.m. ET on NBC, with next-day streaming on Peacock. The series, created by showrunner Joshua Safran, follows a family of federal agents across the FBI, U.S. Marshals, Secret Service and Department of Justice who uncover a deadly conspiracy. Peter Krause and Hope Davis lead the cast.